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Grow QuestionsHow important is high RH and low VPD for young seedlings?

How important is high RH and low VPD for young seedlings?

Wontgiveupstarted grow question 3 years ago

Using the mars hydro tsw2000. -struggling to get to temp and RH that is recommended for 0.4-0.8 VPD. If I go higher than 25% power on the light dimmer, my temps jump to 30 C and humidity drops to 45%. The best I can do is 26-28C, 48%-55% RH. Is this ok for young seedlings??

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Setup. Ventilation

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Shagrathanswered grow question 3 years ago

Hi! You can add a wet towel in to the tent and even better if you put it to a bucket filles with water. Also you can cut plastic bottle on half and place it as a dome but dont put the cap on so the air can exchange still

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autoseedsmananswered grow question 3 years ago

My advice is to put a dome over them if you can keep it around 50% in the room but under the dome will be higher, obviously 70+ is ideal which if kept domed im sure you would more or less achieve that....

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